"""
MCP插件开发示例模板
"""

from typing import Dict, Any
from abc import ABC, abstractmethod
import asyncio
import logging

logger = logging.getLogger(__name__)


class BaseMCPPlugin(ABC):
    """MCP插件基础类"""
    
    def __init__(self, config: Dict[str, Any]):
        """
        初始化插件
        
        Args:
            config: 插件配置
        """
        self.config = config
        self.name = config.get('name', 'unknown_plugin')
        self.version = config.get('version', '1.0.0')
        self.enabled = config.get('enabled', True)
    
    @abstractmethod
    async def load(self) -> Any:
        """
        加载插件
        
        Returns:
            加载的插件对象
        """
        pass
    
    @abstractmethod
    async def register(self) -> bool:
        """
        注册插件
        
        Returns:
            注册是否成功
        """
        pass
    
    async def unload(self) -> None:
        """
        卸载插件
        """
        logger.info(f"卸载插件: {self.name}")
        # 在子类中实现具体的卸载逻辑
    
    def get_info(self) -> Dict[str, Any]:
        """
        获取插件信息
        
        Returns:
            插件信息
        """
        return {
            'name': self.name,
            'version': self.version,
            'enabled': self.enabled
        }


class ExampleMCPPlugin(BaseMCPPlugin):
    """示例MCP插件实现"""
    
    def __init__(self, config: Dict[str, Any]):
        super().__init__(config)
        self.loaded = False
        self.registered = False
    
    async def load(self) -> Any:
        """
        加载插件实现
        
        Returns:
            加载的插件对象
        """
        logger.info(f"加载插件: {self.name}")
        
        # 模拟加载过程
        await asyncio.sleep(0.1)
        self.loaded = True
        
        logger.info(f"插件 {self.name} 加载成功")
        return self
    
    async def register(self) -> bool:
        """
        注册插件实现
        
        Returns:
            注册是否成功
        """
        if not self.loaded:
            logger.error(f"插件 {self.name} 尚未加载，无法注册")
            return False
        
        logger.info(f"注册插件: {self.name}")
        
        # 模拟注册过程
        await asyncio.sleep(0.1)
        self.registered = True
        
        logger.info(f"插件 {self.name} 注册成功")
        return True
    
    async def unload(self) -> None:
        """
        卸载插件实现
        """
        await super().unload()
        self.loaded = False
        self.registered = False
        logger.info(f"插件 {self.name} 卸载完成")


# 插件配置示例
EXAMPLE_PLUGIN_CONFIG = {
    "name": "example_plugin",
    "version": "1.0.0",
    "enabled": True,
    "settings": {
        "timeout": 30,
        "retries": 3
    }
}


async def main():
    """主函数示例"""
    # 创建插件实例
    plugin = ExampleMCPPlugin(EXAMPLE_PLUGIN_CONFIG)
    
    # 加载插件
    await plugin.load()
    
    # 注册插件
    success = await plugin.register()
    
    if success:
        print(f"插件 {plugin.name} 注册成功")
        print("插件信息:", plugin.get_info())
    else:
        print(f"插件 {plugin.name} 注册失败")
    
    # 卸载插件
    await plugin.unload()


if __name__ == "__main__":
    asyncio.run(main())